کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4346922 1296811 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observing shadow motions: Resonant activity within the observer's motor system?
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Observing shadow motions: Resonant activity within the observer's motor system?
چکیده انگلیسی

Several studies have demonstrated that the human motor cortex is activated by the mere observation of actions performed by others. In the present study, we explored whether the perception of ‘impoverished motion stimuli’, such as shadow animations, is sufficient to activate motor areas. To do so, transcranial magnetic stimulation (TMS) was applied over the hand area of the primary motor cortex (M1) while subjects observed shadow animations depicting finger motions. Data showed that resonant motor responses in M1 were only found when a biological effector was recognized from the observed shadow animation. Interestingly, M1 responses were similar for observing shadow or real motions. Therefore, the loss of ‘pictorial’ movement features in a shadow animation appeared to have no effect on motor resonance in M1. In summary, these findings suggest that the ‘recognition’ of biological motion from sparse visual input is both necessary and sufficient to recruit motor areas. This supports the hypothesis that the motor system is involved in recognizing the actions performed by others.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 461, Issue 3, 15 September 2009, Pages 240–244
نویسندگان
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